Radeon RX 5700 vs Radeon RX Vega 64

Intro

Compare all that to the Radeon RX Vega 64, which has a core clock frequency of 1247 MHz and a HBM2 memory frequency of 1890 MHz. It also features a 2048-bit bus, and uses a 14 nm design. It is comprised of 4096 SPUs, 256 Texture Address Units, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5700		180 Watts
Radeon RX Vega 64		295 Watts
	Difference: 115 Watts (64%)

Memory Bandwidth

Theoretically, the Radeon RX Vega 64 should be a little bit faster than the Radeon RX 5700 overall. (explain)

Radeon RX Vega 64		495411 MB/sec
Radeon RX 5700		458752 MB/sec
	Difference: 36659 (8%)

Texel Rate

The Radeon RX Vega 64 is much (about 51%) faster with regards to texture filtering than the Radeon RX 5700. (explain)

Radeon RX Vega 64		319232 Mtexels/sec
Radeon RX 5700		210960 Mtexels/sec
	Difference: 108272 (51%)

Pixel Rate

The Radeon RX 5700 should be a bit (more or less 17%) more effective at AA than the Radeon RX Vega 64, and capable of handling higher resolutions without losing too much performance. (explain)

Radeon RX 5700		93760 Mpixels/sec
Radeon RX Vega 64		79808 Mpixels/sec
	Difference: 13952 (17%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of megabytes per second) that can be transferred past the external memory interface within a second. The number is calculated by multiplying the bus width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.